AIC.survstan function

Akaike information criterion

## S3 method for class 'survstan'
AIC(object, ..., k = 2)

Arguments

• object: an object of the class survstan.
• ...: further arguments passed to or from other methods.
• k: numeric, the penalty per parameter to be used; the default k = 2 is the classical AIC.

Returns

the Akaike information criterion value when a single model is passed to the function; otherwise, a data.frame with the Akaike information criterion values and the number of parameters is returned.

Examples

library(survstan)
fit1 <- aftreg(Surv(futime, fustat) ~ 1, data = ovarian, baseline = "weibull", init = 0)
fit2 <- aftreg(Surv(futime, fustat) ~ rx, data = ovarian, baseline = "weibull", init = 0)
fit3 <- aftreg(Surv(futime, fustat) ~ ecog.ps + rx, data = ovarian, baseline = "weibull", init = 0)
AIC(fit1, fit2, fit3)